Could be one of the following below
Low or uneven tire pressure - check tire inflation.
One or more wheels out of balance - have wheels balanced.
Uneven or excessive tire wear - inspect tires and replace in pairs.
Vehicle out of alignment - check and adjust wheel alignment.
Worn steering components - inspect tie rods and steering rack for excessive play and repair if needed.
Thursday, October 28th, 2010 AT 4:34 AM